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Simplifying (20y + -11) + (4y + 6) + (7y + -7) = 180 Reorder the terms: (-11 + 20y) + (4y + 6) + (7y + -7) = 180 Remove parenthesis around (-11 + 20y) -11 + 20y + (4y + 6) + (7y + -7) = 180 Reorder the terms: -11 + 20y + (6 + 4y) + (7y + -7) = 180 Remove parenthesis around (6 + 4y) -11 + 20y + 6 + 4y + (7y + -7) = 180 Reorder the terms: -11 + 20y + 6 + 4y + (-7 + 7y) = 180 Remove parenthesis around (-7 + 7y) -11 + 20y + 6 + 4y + -7 + 7y = 180 Reorder the terms: -11 + 6 + -7 + 20y + 4y + 7y = 180 Combine like terms: -11 + 6 = -5 -5 + -7 + 20y + 4y + 7y = 180 Combine like terms: -5 + -7 = -12 -12 + 20y + 4y + 7y = 180 Combine like terms: 20y + 4y = 24y -12 + 24y + 7y = 180 Combine like terms: 24y + 7y = 31y -12 + 31y = 180 Solving -12 + 31y = 180 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + 31y = 180 + 12 Combine like terms: -12 + 12 = 0 0 + 31y = 180 + 12 31y = 180 + 12 Combine like terms: 180 + 12 = 192 31y = 192 Divide each side by '31'. y = 6.193548387 Simplifying y = 6.193548387
| x+12=23+5x | | 2x=16x-56 | | 2-2b=b+2-3b | | 9c+14=11c | | -7.24g=17.014 | | x-5.2=18.7 | | 3600=2x-300 | | 2(-10-11)=6(-10+3) | | -5x-20+110=180 | | 0.125d-3(d-7)=5.125d-3 | | N/5=15/3 | | -3/4x-7=-12 | | r/2-1.7=-1.15 | | 4x+13=8x-9 | | 3h-8=5h+10 | | 8x^2+6y=0 | | 8n^2+32n=168 | | X+109=1396.9+-1229.6 | | N/4-1-10=-50 | | 1/4x-2/3=9/10 | | 2.8m+2.3=-8.34 | | w-17=-10 | | 2.4x+14=7 | | 7/9p-4=10 | | a+b-2=2m | | -14=2/5(9-2v) | | 4.9x+2.88=-18.19 | | w-17=10 | | http://homework.cpm.org/cpm-homework/resources/CPM/CC/CCA/Ch4/4-60/49ab5e2e888b3547d314966ae22928c5/4-60_QuestionC.gif | | 3x+.2=3x-.6 | | 8j+4(4j-3)=4(5j-4)+14 | | N/9=28//7 |